android - 无法在 flutter 中提取 zipper

Question

从服务器下载 zip 文件夹并尝试提取 zip，但 zip 有多个目录。我可以下载 zip 但无法提取它。当 zip 有多个图像文件但在我的情况下有多个目录并且有多个文件时，下面的代码可以工作。

String _localZipFileName = 'archive.zip';

  Future<File> _downloadFile(String url, String fileName) async {
    //url==http://115.166.142.178:3000/staff/syncdata
    var req = await http.Client().get(Uri.parse(url));
    Log.e("DOWNLOAD DIRECTORY",_dir);
    var file = File('$_dir/$fileName');
    return file.writeAsBytes(req.bodyBytes);
  }

  Future<void> _downloadZip(String _zipPath) async {
setState(() {
  _downloading = true;
});

Log.e("Zippath",_zipPath);
_images.clear();
_tempImages.clear();
var zippedFile = await _downloadFile(_zipPath, _localZipFileName);
Log.e("Zippath",zippedFile.path);
await unarchiveAndSave(zippedFile);
setState(() {
  _images.addAll(_tempImages);
  _downloading = false;
});
  }



 unarchiveAndSave(var zippedFile) async {
    var bytes = zippedFile.readAsBytesSync();
    var archive = ZipDecoder().decodeBytes(bytes);

for (var file in archive) {
  var fileName = '$_dir/${file.name}';
  if (file.isCompressed) {
    var outFile = File(fileName);
    Log.e('File:: ' , outFile.path);
   // _tempImages.add('${outFile.path}/productImages');
    outFile = await outFile.create(recursive: true);
    await outFile.writeAsBytes(file.content);
  }
}
  }

Answer 1

存档包有 extractFileToDisk方法应该做你想做的事。